Elevator-indicator system.



F. A. BOEDTCHER.

ELEVATOR lNDlCATOR SYSTEM.

APPLICATION FILED FEB. 21, 1914.

Patented Dec. 28, 1915.

SHEETSSHEET 1.

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*2: TTORNE rs F. A. BOEDTCHER.

ELEVATOR INDICATOR SYSTEM.

APPLICATION FILED FEB. 21.1914.

latvnted D00.- 28, 1915.

5 SHEETS-SHEET 2.

W/TNESSES ssnzzTs-snin 3.

Patented D60. 28, 1915.

m m m m A F. A. BOEDTCHER.

ELEVATOR INDICATOR SYSTEM.

APPLICATION FlLED FEB. 21, I9l4.

WITNESSES MzM/%w/2/ aiw [i W ATTOH/J F. A. BOEDTCHER.

ELEVATOR INDICATOR SYSTEM.

APPLICATION FILED FEB. 2|, I914.

1,165,389 Patented Dec.28,1915.

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INVE/VTUR AfiaetZZc/ze By M 4% Q0 A TTOH/VEYS WITNESSES O F. A. BOEDTCHER.

ELEVATOR INDlCATOR SYSTEM.

APPLICATION FILED FEB\ 2i, I914.

Patented Dec. 28, 1915.

5 SHEETS-SHEET 5.

UNITED sTAT Sr-ATENT OFFICE.

FRANZ BOEDTCHEB, 'or BERGENFIELI), NEW JERSEY.

ELEVATOR-INDICATQB SYSTEM.

To all whom it may concern: I

Be it known that I, FRANZ A. BOEDTCHER, a citizen of the United States, and a resident of Bergenfield, in the county of Bergen and State of New Jersey, have invented a new and Improved Elevator-Indicator System, of which the following is a full, clear, and exact description.

This invention relates to improvements in elevator indicators and systems of control therefor, and has for an object to provide an improved structure for causing the indicator at various floors to exhibit information showing the position and direction of travel of the elevator. J

Another object of the invention is to provide a controlling device for an indicator wher'ebythe indicator will always correctly show the position of the elevator and the direction of travel thereof.

A further object of the invention is to provide means associated with the indicator controlling device for permitting movement of the hoisting drum for the elevator without deranging the indicator.

A still further object of the invention is to provide an improved arrangement of wir- 3 ing, push button attachments and annunciators arranged in the elevator, and at convenient points for showing or indicating the rings or signals of passengers on the various floors, and the corresponding actions of the elevators as the same take on said passengers.

In carrying out the objects of the invention the construction is adapted to be connected with anydesired kind of elevator, and to elevators moving at any desired speed, and any desired distance. Arranged at the upper drum is an attachment for connecting the shaft of the drum with the cable or rod used in shifting the indicator needle at the respective floors of the building in which the elevator is arranged. This attachment is provided with an adjusting take-up, and with means forgiving a direct pull on the cable rod which operates the various indicators. In addition to these devices, a power device is provided-adjacent the drum which is arranged with a stop, and. withfriction members, whereby when the elevator reaches .its uppermost position the indicator moving rod will be stopped even though the elevator move a short distance above its highest stop, or the drum rotates for a short distance beyond its ordinary stoppingpoint. Connected with the indis pecificationof Letters Patent.

Application 'flled l'iebruary 21, 1914. Serial in. 820,188.

Patented Dec. 28, 1915.

cator rod is an indicator for each floor which operates as the elevator moves up and down. Associated with the indicator rod and the indicators are annunciators and suitable wiring therefor, the annunciators being arranged in the elevators, and at any other convenient point, as for instance in the superintendents office. In connection with the indicators a special drop is provided which is raised to indicate a signal when any of the buttons are pushed. These drops are held in position until the elevator comes to a stop at the floor on which the operated button is disclosed, whereupon a circuit is established for" releasing thedrop. Associated with the drop and the means'for releasing the same is a drop regulating structure arranged preferably at the top of the elevator shaft. This regulating device is adapted to open the circuit of the releasing member for the drop while the elevator is moving at its usual speed so that when the elevator is moving at its usual speed so that when the elevator moves pasta floor at its usual speed the drop will not be restored, whereby the next elevator will know that a passenger is still waiting to be transported from one floor to the other. In this way when a passenger closes the switch by pushing the button at any floor he is sure that the signal will be maintained in the various elevators until some of the same have stopped vators; Fig. 3 is a fragmentary front view of the drop used in the annunciator shown in Fig. 2; Fig. 4 is a view similar to Fig. 3, but disclosing the drop in a released or neutral position; Fig. 5 is a front view of the indicator and associated operating parts; Fig. 6 is a section through Fig. 5 approximately on line (i6, the same being shown on an enlarged scale; Fig. 7is a fragmentary sectional view of the indicator, the same being taken approximately on line 77 of Fig. 6; Fig. 8 is an edge View of a switch embodying certain features of the invention, the housing being shown in section; Fig. 9 is a sectional view through 8 approxi mately on line 99; Fig. 10 is a sectional view through Fig. 8 approximately on line -i0; Fig. llis a plan view of a passenger" operated-switch, the casing thereof being removed; Fig. 12 is a longitudinal vertical section through the switch shown in Fig.11;

'Fig.*13 is ,a longitudinal vertical section through an elevator operated switch, the

- same being a'modified'form ofthe switch shown in Fig. 8; Fig. 14 is a diagram of the wirings' for the annunciator, signal bells and associated devices; Fig. is a fragmentarv top plan view of the indicator-rod or cable driving means, part of said means being shown in section; Fig. 16.is a side elevation of the indicator rod or cable takeup; Fig. 17 is a section through the switch controlling deviceshownin Fig. 15, the same being taken on line 17-17; Fig. 18 is a sec tion through Fig. 15 on line 18%18; Fig. 19

is a detailed perspective view of a saddle or ranged. These elevators maybe of any desired construction, and may be operated by any desired meansyas for instance the usual cables anddrums 6'and 7. The drums 6 v and 7 are connected with the indicator rods or cables 8 and 9, and are designed to operate the same so that the various indicators 10 may continually show the. position of the respective elevators 4 and 5. v The means for operating the rods 8 ahd 9 are thesame for each elevator, and these means are shown'in detail in Figs. 15 and 16. Referring to these figures it will be observed that shaft 11 is secured to the shaft of drum 6 by being threaded therein and held in place by a suitablelock nut 12, which look nut carries a bearing washer 13 against which bears sprocket wheel 14 and the end of the threadedsleeve 15. The sprocket wheel 14 is rigidly secured to sleeve 15 in any desired manoer, as for instance by being keyed thereto. Sleeve 15 is threaded on the exterior and carries stops 16 and 17, which stops may be secured'at any desired point along sleeve 15 rigidly to. the sleeve by any desired clamping means, as for instance a set screw, or by i being split at one point and squeezed against the sleeve by asuitable bolt 18. Each of these stops is provided with a tooth or pro- 1 jection 19 adapted to engage the respective teeth 20 and 21 on an arm 22 threaded on to sleeve 15. The arm 22 is provided with an aperture 23 through which a pin 24 extends,- pin 24 being rigidly secured to the support- 111g bearing 25. When sleeve 15 rotates arm 22 is held stationary and consequently, moves from one endto the other of the sleeve according to the direction of rotation of the sleeve. Vfhen arm 22 is at one end of the sleeve tooth 21 engages projection or tooth 18 on stop 16 andprevents the further rotation of sleeve 15. If the sleeve 15 is reversed arm 22 will move to the opposite end of said sleeve and tooth 20 will interlock with tooth 19 of stop 17, whereby any further movement of sleeve 15 will be presented. In this manner the number of revolutions of sleeve 15 is controlled, notwithstanding the greater amount of rotation of the shaft 11. Shaft 11' is rigidly connected with the shaft of drum'6,'and continually rotates therewith. Arranged on the outer end of shaft 11 is a spring 26 which presses against the friction washer 27 and an adjustable stop 28 locked .in place by a suitable set screw 29. By the arrangement of the stop 28, spring 26 may be'brought under any desired tension, and consequently will press against sleeve 15 to any desired extent. so as to give the necessary power to sleeve 15 to rotate sprocket wheel 14, and move the parts, hereinafter fully described, for properly actuating the rod'or cable 8. This particular structure of sleeve 15 and associated parts, and the way the same is" propelled, is verydesirable, as

in 'a suitable support 34, the sides of which act as a guide for plate 35, plate 35 being moved in one direction by the endof nut 33 and in the opposite direction by the feet or extensions 36 and 37 of the saddle or-yoke 38. The saddle or yoke 38 partially surrounds nut 33 and travels on the opposite side of plate 35 to the nut 33. Chain 39 is connected with the yoke 38 and extends over a suitable guiding sprocket wheel 40, which sprocket is rigidl secured to shaft 41. Shaft 41 has rigidly connected therewith a tensionand adjusting plate 42. The tension.

or adjusting plate 42 is provided with a plurality of radial. slots 43 in which are arranged'adjustable pins'44, which pins may be clamped in place in any desired manner,

as for instance by having one end reduced and-threaded, which end extends through therespective slots so as to receive a clamp. ing nut on the opposite side; A chain or cable 45 is connected'to one of the pins 44 and is looped over all or part of the remaining pins, and the end opposite that secured to one of the pins 44 is connected with the rod or cable 8. It will be evident that the pins 44 could be adjusted toward and from the center of plate 42 so as to give the rod or cable 8 a greater or less travel upon a single rotation of plate 42 so that the entire constructlon could be easily used upon a low building or a high building. The chain or cable 45 and the means for operating the same raise the cable 8, while a suitable weight 46 secured to the lower end of the cable or rod 8 acts under the law of gravitation for lowering the cable when plate 42 moves in a reverse direction. Inorder that the chain or cable 45 may act in a smooth, easy mannersuitable rollers 44" may be arranged upon the pins 44. By the construction and arrangement thus described, means are presented which will cause the indicator cable or rod to always move the same distance so that the indicator pointers and other indicating means will always be actuated the same distance. The slipping of the upper or the lower drums or any of the various parts by reason of a sudden stop of the elevator will not in any way afi'ect the proper movement of the'indicator cable or rod and the various indicators connected therewith.

Arranged in each of the cars is an annunciator 47 which is provided With any desired kind of housing and a bell 48 adapted to be rung each time any of the buttons 49 are pressed, there being one or more buttons 49 on each floor. Arranged in the housing of the annunciator are apertures 50, 51, 52 and. 53 back of which electrically operated drops are provided. These drops are more clearly shown in Figs. 3 and 4, wherein it will be observed that each drop is provided with electrical magnets 54 and These magnets are connected with different circuits, magnet 55 being energized when any of the buttons 49 are pressed, While magnet 54 is energized when the elevator passes the floor carrying the button which has been pressed for energizing magnet 55. The circuits of magnets 54 and 55 will be hereinafter fully described so as to show how these magnets are energized as stated. When magnet 55 is energized the same attracts the armature 56 which'is connected with a plate 57 pivoted at 58. Plate 57 has an upstanding arm 59 adapted to co-act with the stop 60 upon the pivotally mounted bar 61. The pivotally mounted bar 61 carries an armature 62 adapted to be attracted when the magnet 54 is energized. Arranged adjacent the magnets 54 and 55 is a shutter 63 pivoted at 64. The plate 57 engages the shutter 63 at point 65 for raising the same to the position shown in Fig. 3 when armature 56 is energized. WVhen armature 56 is energized the arm 59 will be moved to the positionshown in Fig. 3 and locked in that position by the stop 60. This is necessary as the depression or closing of the switch by pressing buttons 49 is only temporary, and consequently the magnet 55 is energizedtemporarily. However, it is desired to hold the shutter 63 in the position shown in Fig. 3 for some time, or until the passenger has been received so that the stop 60 co-acting with arm 59 is necessary to hold the shutter as shown in Fig. 3. \Vhen the car passes the floor on which the button is positioned the same closes the circuit of magnet 54, as hereinafter fully described, so that armat-ure 62 is energized and stop 60 raised, whereupon the weight of armature 56 will causeplate 57 to drop down to the position shown in Fig. 4 under the action of gravity. This will also permit the shutter 63 to drop down to the position shown in Fig. 4 under the action of gravity, shutter 63 being continually overbalanced by the fact that the pivotal member 64 is not arranged centrally. In order that the shutter 63 may be allowed to move to an inoperative position, at any time, (Fig. 4,) a manually operated reciprocating rod 66 is provided which is formed with'a'stop or projection 67 adapted to engage the extension 68 of stop 60, whereby when the operator or any one presses the knob 69 on the lower end of rod 66 the stop will be raised and the shutter released. The magnets 54 and 55 of the various cars are arranged in multiple so that when any of the buttons 49 are pressed the annunciators of the various cars will show that fact, and will maintain the shutter 63 in its upright or operative position until one of the-elevators has stopped for the passenger, whereupon all of the shutters 63 for that particu .lar floor will drop down to the position one circuit being connected with magnet 55,

that is, these respective circuits are connected so the bell and magnets in all of the cars will operate upon the pressing of a single button 49. These circuits are clearly shown in Fig. 14, and will be fully described hereinafter.

Fi s. 8 to 10, inclusive, show a floor elevator-operated switch which is inserted in the circuit of the various magnets 54. A housing 72 is ositioned adjacent the segmental member 75 associated with the indicator mechanism disclosed more particularly in Figs. 5. 6 and 7 hereinafter fully described. As shown in Fig. 8 arm 73 is provided with an insulating block or section 76 so that the contact end 77 is insulated from housing 72 and associated parts. As the elevators move up .and down the segmental membcr 75 moves correspondingly, and consequently arm 73 moves or swings back and forth so as to rock member 78. Member 76 is formed with a transverse bar 79 and a depending operating bar 80 which is engaged by contact member 77 and moved one way or the other. When the contact I other.

member 77 is moved to the left, as shownin Fig. 8., the crossbar 7 9 will contact with the switches 81, 82 and 83, and when member 78 is swung in the opposite direction the bar 7 9 will contact with switches 84, 85 and 86. As shown in F ig. 10 .the bar 79 is divided up into sections so that the individual sections engage the. various switches or con tinually act simultaneously, as'if'they were one bar. As shown in Figs. 9 and 10, the operating bar 80 is divided into sections by insulating blocks 87 and 88. The various wires and; the various circuits usediare connected to these switches through. suitable binding posts.

In Fig. 13 a slightly. modified form of switch is shown to that disclosed in Figs. 8, 9 and 101 In this form of the invention there is no lower switch members, but the various switches 89 and 90 are arranged on the same plane, and the opposite ends of the horizontal bar 91.are adapted to operate.

these switches. It is to be understood that bar 91 is divided into sections, as shown in Fig". 10., and the various other structures shown in this term 01 the invention are similar tothe tor 1110i the invention shown in Fig. 10 so that no'additional description will be necessary.

Referring to F igs. 5, 6 and 7 it will be observed that the same show an indicator mechanism associated with a segmental member 75, which member is connected with a pivotaliy mounted shaft 14, which shaft is supported by housing 72. A. bar 92 is adjustably secured to segmental member 75 by a clamping screw 93. A. suitable slot 94 is provided in segmental member 75 for permitting a proper arrangement of bar 92, which bar is journaled on shaft 1 1 and has clamped thereto an arm 95, which arm carries a member ltigidly clamped toe -1ging'rne1nloer 96 is reciprocating rod 97. 9'? is preferably clamped swinging member 96; by a set screw 88 so .1; rod 9? and swing insinher 86 may be adjusted in respect to each Red 9? is bent upon itself so asto provide a looped portion 99., which looped portion passes over a wheel 100, whereby the upper part of he rod rests upon the grooved wheel 100 e grooved wheel 160 guides the lower A suitable wei ht 101 is provided 'od 97 which holds the looped portion oroperly in position provides ample Weig t so that upon a back and forth movei'nent of rod 89 "will be a suilicient friction rotate wheel 166, which wheel is rigidly secured to 162. 951121111162 carries the poiv er 108 on the face of the dial The o ten p it, of a casing- 165. which casing" carries drums 166 and 107. These drums are supported by suitable shaft and 169., each. shaft carrying a pinion '6 meshing with the respective racks 111 and 112. Racks 111 and 112 are connected with a reciprocating bar 113, which bar is provided with a notched portion 114 (Fig.7) in which the end of arm l15'is positioned. Arm 115 surrounds shaft 102 loosely, but carries a reciprocating friction block 116, which block is pressed by spring 117.- The spring 117 may have the tension thereof varied by a set screw 118 so as to cause a greater or less amount of friction of block 116 against shaft 102, and thereby provide a greater or less amount of power for shifting the reciprocating bar 113. A pair of pivotally mounted bars 119 and 120 are pivotally connected to bar 113 for preventing any momentum thereof. These bars carry at their upper ends adjustable weights so as to cause the same to act more evenly. Arranged in the cylinders 106 andlO'Z are suitable means which will be lighted up. as hereinafter fully described. These lights light up the cylinders when the car approaches a floor. These cylinders carry the legends Up and Down so that the passenger may see where the particular car is and the direction in which it is going, or is about to go.

1n Fi s. 15 and 17 will be disclosed a controlling device usedfor controlling the circuits of the release magnets 51 when an elevator passes a particular tloor without stopping. When any of the buttons 19 have been depressed by a passenger, switch mechanism shown in l3 8 to 18, i sive, will operate for temporarily. enei magnet 54: and thus releasing the shuot in that particular car, and also in all of the other cars.

not stop for the assenge rinsing h particular mechanism shown in 1 igs. Lo and 17 will maintain the circuitoit all the nnignets 5 1 open, whereby the shutter will in position and act a signa a passenger on a particular l'loor' desires to do '11., as the may Refe particularly to these figures. 121 in wheel provided with band or covei which be of leather or other suitable material so as eliminate slipping between the same and the drum 6 against which it acts. As the drum rotates wheel 121 will be rotated which is provided with an axle Connected with is a governor 124.- of substantially the usual cen type. Connected with the governor 14-3 insulating plate 125 carr rings 126 and 127'. These rin s are adapted to contact with members 128 129, 136 and 181 through suitable members, as for instance set screws. These contact members are in the circuit oi? the magnets of the two cars shown. Governor 12d adjusted so as to hold the rings 126 and 12'? out of contact with the members 128 to 13 1. inclusi e. while elevator is moving substantially .L. the

However. in case the car does usual speed, but when the elevator slows up for stopping at a floor the governor consequently slows up .and allows these plates to contact with the respective contact members and thereby closes the circuit for the switches shown in Figs. 8 to 10, inclusive, whereby the same may be actuated to close the circuits of the magnets 54. It is of course evi working of the pointers on the various indicators, and also the correct working of the buttons and annunciators.

The wiring for the buttons, annuncia- OI'S nd ells" is shown in Fig. 14, to'which referenceis now made. The wiring in this diagram is arranged as near as possible to conform to the arrangement of the elevators,

and as shown in Fig. 1, namely, the wiring for the buttons, per sefls arranged between lines 132 and 133, while the Wiring for elevator 5 is arranged to the left of this line,

and the wiring for elevator 4 is arranged to the right. The annunciator 47 in elevator 5 is represented by a suitable inclosing llne while the annunciator 47," in elevator 18 also represented by a suitable inclosing line.

Assuming that a passenger is on the second floor and desires to go up, the passenger presses button 49 on that floor, whereby the switches-or contact members and 71 are porarily and consequently throw "upthe shutter 63, as shown 1n Fig. 2. At the same time that this circuit is closed current will flow through the, switch or contact 71 for ringing bell 48. Beginning with sw tch 71 current will flow through wire 141, wire 142, battery .143, wire 144, wire 145, bell 48, wire 149, and from thence through wires 150" and 151 to switch 71. From this it will be,

evident that the bell will ring as long as the button is depressed, and the magnet 55 will be energized as long as the button is depressed. When the button is releasedthe. bell will cease to operate, but the shutter 63 will, .be held in its elevated position by the locking bar or lever 61 shown in Fig.

the same will close the circuit of all *of the- The,

magnets 54 for the second floor. switches shown in Figs. 8to 9, inclusive, are

shown in diagram in Fig. 14, in the housing- 72 at the right of the figure. When the elevator moves upwardly to the second floor the arm 73 shown in Fig.8 is moved over and member is swung so as'to cause the various sections of bar 79 to engage the respective contact members .81, 82 and: 83. When these contact members are engaged current will flow, for instance, from contact member 83 through wire 152, wire 153, magnet 54 on each of the elevators, wire 154, wire 155, wire 156, battery 157, wire 158,'rings 126 and 127 of the automatic switching device 159 shown in Fig. 15, wire 160, wire 193, wire 161, and wire 162 to one of the sections of bar 79, which contacts with the contact 83. This completes the circuit for magnet 54. At the same time that this circuit is closed the circuit is closed through lamp 163 arranged in the elevator for indicating to the operator and the passengers that the elevator is about to stop at a particular floor. The lamps 163, 164, 165 and 166 are arranged in a housing or casing similar to the annunciator, and are designed merely as visual signals which light up as the elevator is about to stop. Beginning with contact 82 current will pass therefrom to wire 167, lamp 163, wire 168, wire 169, battery 170, wire 171, and wire 172, back to the section of bar 79. opposite contact 82,

whereupon the circuitof lamp 163 will be closed. F rom this it will be observed that when the button is pressed by a passenger the signal will immediately be given in the annunciator, and when the car is; about to stop a light will flash in a suitable casing in the car. In addition to flashing a light in the car a light is flashed in casing 173 in the superintendents ofiice. Current pass,- ing to wire 167 from contact 82 will branch and pass through wire 174, lamp 175 in the superintendents, oflice, wire 176, wire 169, battery 17 0, wire 171, and from thence back to wire 172. In addition togproviding these signals the drums 106 and 107 shown in Fig. 6 having the legends Up and Down, will also be lighted so as to indicate to the passenger who has rung the hell that the car is about to sto Starting with contact 81 current will ow through wire 177, wire 178,

lamp 179, wire 180, wire 181, wire 182, battery 183-, an automaticswitch 159' shown in Fig. 15,: wire 184, wire 185, back to member 79. Thus it will be seen that a large number of signals are lighted when the car is about to stop, and also that the annunciator will be automatically reset. .In the showing in Fig. v14 there is a diagram for three floors so that the top and bottom floors are provided with I only a half switch, that is, the top floor is provided with the contacts 84, 85 and 86 of the switch shown in Fig. 8, while the ground door is provided only with con-- tacts 81, 82 and 83. The contacts 81, 82 and 88 on the ground floor operate similar to those on the second floor and therefore will need no additional description. The contacts 84, 85 and 86 on the top floor operate similar to the same contact on the second floor which will. be hereinafter fully described, as such description is thought to cover both floors. When a passenger is on the second floor and desires to go down the down button 49 is pressed, whereupon the circuit for bell 48 will be closed and the circuit for the magnet 55.0n the down side of the'annunciator will be closed. When the switch 79 of the down button is pressed current will flow through wire- 185,- wire 189, battery 138, wire 187, magnet 55 of the down side of the amnunciator on the second floor, wire 186 and through wire 187 back to the switch 7 0. This will. temporarily close the circuit of magnet 55 on the down side so as to raise the shutter 63. At the same time that current flows in this circuit current will flow through switch 71, wire 188, wire 150, wire 149, bell'48, wire 145, wire 144, battery143, wire 142, and from thence through wire 189 to the switch 71. It will of course'be evident that the bell 48 and the magnet 55 will be energized only as long as the button is depressed. The annunciator will continue to" show the signal until one of the elevators has stopped to take on a passenger, but when the-elevator stops contacts 84, 85 and 86 will engage the various sections of,bar

79, which sections are insulated from each other. When the elevator stops to take on a passenger the governor closes the circuit of the annunciator so as to restore the same. it will be noted that an elevator passing down the elevator shaft will operate the bar 79 and will not cause the annunciator to be restored unless the elevator stops, as it requires the stopping of the elevator and consequently the stopping of the governor connected therewith before the circuit of the re-' the circuits of the signal lamps in the car,

the signal lamp in the superintendents otlice and the signal lamps in the indicators I at each floor. Y

A circuit for the contacts-.84, 85 and 86 .will now be traced to'show how the same taneously with this action current will flow from contact 85 through wire 194, wire 195, lamp 165, wire l68, wire 169, battery 170, wire 171, and from thence through wire 172 to the center section of bar 79. This will cause the light in the car to light up, for indicating to the passengers that the car is about to stop. Simultaneously with this action current will divide at connection 196 and pass over wire 195 to lamp 165 and from thence through Wire 176 to wire 169, battery 170, wire 171, wire 172, back to the starting point. .Thus it will be seen that the contact 85 closes the circuit for the lamp 168 in the car and lamp 165 in the superintendents office. At the time that these circuits are closed another circuit is closed, namely, the circuit which includes contact 84. Tracing this circuit and commencing with contact 84 current will flow through wire 196, wire 178, lamp 179, wire 180, wire 181, wire 182, battery 183, automatic switch 159, wire 184, wire 185, back to one of the sections of bar 79, thus completing the circuit. This circuit includes the lights which light up theindicator shown in Figs. 5 6 and 7. Referring to Fig. 14, the circuit 0 the centrifugal governor 159 is shown as in cluding the restoring magnets and also the switches at the restoring floor. In order that these switches may be more clearly understood, the same are hereby traced. Starting with battery 157 current will flow through wire 156, wire 155, wire 154, magnets 54, wire 153, wire 152 to contact 83 and from thence to contact 79, when the elevator just described.

Each. floor, except the top and bottom floors is formed with mechanism and wirings as described in respect to the second floor, the various parts merely being duplicated. In Fig. 14 the various circuits of one elevator on one floor have been traced so that the construction and'operation of the various partswill be made clearly. The other floors and the other elevator are provided with the same structures and operate in the same way. In other words, the top switches and wiring and associated parts are the same for both elevators, and are arranged in multiple, the wirings on the second floor being arranged in multiple for the two floors and the bottom floor being likewise arranged in multiple with the same mechanism. By the wirings of the elevators being connected in multiple, the operation of any one push clear all of the elevators or annunciators in the respective elevators.

What I claim is- 1. In an elevator signal system of the class described, an indicator adapted to bearranged at each floor, an annunciator arrangedin each of the elevators, a push button arranged on each floor, and means providing circuits for the push button, the annunciator and the indicators, said means including a system of. wiring an elevator operated switch, and a stop switch operated by stopping the elevator at a floor, whereby when said push button'is depressed the annunciators will be operated, and when an elevator stops at the floor upon which the button is located said stop switch will be operated for restoring said annunciator.

2. In an ,elevator signal system, a flash light signal arranged in each elevator, an

annunciator arranged in each elevator, an

indicatorarranged on each floor, said indicator being provided with legends for indieating the direction of travel, means at each floor operable by a passenger for setting the annunciator in each of the elevators, and means operated by stopping the elevator to receive such passenger, said means closing the circuit of said flash light in the elevator and the circuit of the lights used in illumi-.

nating the legends in said indicators.

3. In an elevator signal system, a signal bell arranged in each elevator, a push button arranged on each floor, wiring for connecting said push buttons and said signal bells, whereby when said push buttons are pressed said bells will ring, an annunciator arranged in each of the elevators, wiring for connecting said annunciators with said push buttons, so that when any of said push buttons are pressed the corresponding part' of the annunciator will be operated, means for restoring said annunciators, and means operated by the "driving mechanism of the elevator for maintaining the circuit of said restoring mechanism open until the elevator stops, whereby an elevator passing a button that has been pressed will not reset said annunciators. v I

4. In an elevator signal system, an annun c'iator arranged in each of the elevators, a button at each floor, wiring connectingsaid buttons with said annunciators, whereby when the respective buttons are pressed the corresponding drops in the annunciators will be operated, a restoring mechanism for said annunciators, a circuit for said restoring mechanism including a switch operated by stopping the elevator, and means maintaining said restoring circuit open when the elevator passes a floor upon which a signal has been given, whereby said annunciator will not be restored.

5. In an elevator signal system, an'annunciator in each elevator, a push button at each floor, wiring connecting said push buttons with annunciators in the respective elevators, whereby the annunciators may be operated from any floor, an elevator operated switch positioned at each floor, a second set of wiring forv said elevator operated switch, a second switch operated by stopping the car, said second switch being in cluded in said second set of wiring, whereby the annunciators are restored as the elevator stops at the floor on which the button, which has been pressed, is located.

6. In a signal device for elevators, an annunciator arranged in the elevator provided with a signal operating magnet and a signal resetting magnet, a push button arranged at movement of the elevator, said automaticswitch comprising a pair of contacts and a governor for moving one of said contacts toward and from the other contact.

In testimony whereof I have signed my name to this specificationin the presence of two subscribing witnesses.

FRANZ A. BOEDTCHER. \Vitnesses A. L. Krronm, PHILIP D. Romans. 

